[WATCHDOG] ib700wdt.c - convert to platform_device part 2

Convert the reboot_notifier into the platform_device's shutdown
method

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

1 files changed, 7 insertions, 35 deletions

diff --git a/drivers/char/watchdog/ib700wdt.c b/drivers/char/watchdog/ib700wdt.c
index b74e15159c02..c3a60f52ccb9 100644
--- a/drivers/char/watchdog/ib700wdt.c
+++ b/drivers/char/watchdog/ib700wdt.c
@@ -36,9 +36,7 @@
 #include <linux/miscdevice.h>
 #include <linux/watchdog.h>
 #include <linux/ioport.h>
-#include <linux/notifier.h>
 #include <linux/fs.h>
-#include <linux/reboot.h>
 #include <linux/init.h>
 #include <linux/spinlock.h>
 #include <linux/moduleparam.h>
@@ -284,21 +282,6 @@ ibwdt_close(struct inode *inode, struct file *file)
 }
 
 /*
- *      Notifier for system down
- */
-
-static int
-ibwdt_notify_sys(struct notifier_block *this, unsigned long code,
-        void *unused)
-{
-        if (code == SYS_DOWN || code == SYS_HALT) {
-                /* Turn the WDT off */
-                ibwdt_disable();
-        }
-        return NOTIFY_DONE;
-}
-
-/*
  *      Kernel Interfaces
  */
 
@@ -318,15 +301,6 @@ static struct miscdevice ibwdt_miscdev = {
 };
 
 /*
- *      The WDT needs to learn about soft shutdowns in order to
- *      turn the timebomb registers off.
- */
-
-static struct notifier_block ibwdt_notifier = {
-        .notifier_call = ibwdt_notify_sys,
-};
-
-/*
  *      Init & exit routines
  */
 
@@ -350,12 +324,6 @@ static int __devinit ibwdt_probe(struct platform_device *dev)
                 goto out_nostartreg;
         }
 
-        res = register_reboot_notifier(&ibwdt_notifier);
-        if (res) {
-                printk (KERN_ERR PFX "Failed to register reboot notifier.\n");
-                goto out_noreboot;
-        }
-
         res = misc_register(&ibwdt_miscdev);
         if (res) {
                 printk (KERN_ERR PFX "failed to register misc device\n");
@@ -364,8 +332,6 @@ static int __devinit ibwdt_probe(struct platform_device *dev)
         return 0;
 
 out_nomisc:
-        unregister_reboot_notifier(&ibwdt_notifier);
-out_noreboot:
         release_region(WDT_START, 1);
 out_nostartreg:
 #if WDT_START != WDT_STOP
@@ -378,7 +344,6 @@ out_nostopreg:
 static int __devexit ibwdt_remove(struct platform_device *dev)
 {
         misc_deregister(&ibwdt_miscdev);
-        unregister_reboot_notifier(&ibwdt_notifier);
         release_region(WDT_START,1);
 #if WDT_START != WDT_STOP
         release_region(WDT_STOP,1);
@@ -386,9 +351,16 @@ static int __devexit ibwdt_remove(struct platform_device *dev)
         return 0;
 }
 
+static void ibwdt_shutdown(struct platform_device *dev)
+{
+        /* Turn the WDT off if we have a soft shutdown */
+        ibwdt_disable();
+}
+
 static struct platform_driver ibwdt_driver = {
         .probe          = ibwdt_probe,
         .remove         = __devexit_p(ibwdt_remove),
+        .shutdown       = ibwdt_shutdown,
         .driver         = {
                 .owner  = THIS_MODULE,
                 .name   = DRV_NAME,